Apache Pulsar 5.0 Released with Scalable Topics

Pulsar 5.0 has two headlines. Scalable Topics are a new kind of topic that grows and shrinks with demand while preserving per-key ordering. The second is major performance and reliability improvements for the topics and applications you already run, which you get by upgrading your cluster, with no application changes. Oxia is the recommended metadata store for new clusters that replaces ZooKeeper.